Reenforcing stud for construction boards



i Patented Decm29, 19 31 i sufiicient strength to support are adapted to embrace UNITED STATES PATENT ROBERT M. CHESNEY, OF WARREN, OHIO, ASSIGNOE;` BY MESNE ASSIGNMENTS, TO UNITED STATES GYPSUM COMPANY, OF CHICAGO, ILLINOIS, A CO RPORATION OF ILLINOIS REENFOCING STUZ FOR CONSTRUCTON BOARDS Application filed May 6, 1929. Serial No. 360,'731.

This invention relates to a stud or union for joining construction boards, and is particularly adapted for use in connection with composition or plaster boards, and the like.

One of the objects of the invention is to provide a method and means for securing together the adjacent edges of Construction boards so as to form a tight reenforced joint therefor and protectthe edges of the boards. Another object is to provide a union device of staunch Construction which may `be constructed of light material and out of a single strip of sheet metal, if desired, 'and yet be of theedges of adjacent Construction boards. Another object is to provide a reenforced union device which provides means for retaining plaster thereon. Other objects and advantages will appear as the description proceeds.

The invention is fully described in the following specification and illustrated in the accompanying drawing, in ,which is shown a perspective View of a union device embodying my invention. 4

In the form illustrated, the union or stud' is formed out of a single strip of sheet metal, being shaped to form a channeled section somewhat like the letter I, and comprises a base l, Websections 2, and fianges or legs 3.

The base l is preferably formed with flanges having a double wall, giving it gre'ater strength and to furnish a rigid support for the remaining parts of the unioni" The Websections 2 are preferably formed a short distance apart so as to leave therebetween a groove 4; The Channels lying back to 'back between the base 1 and the fianges or legs 3 the edges of the boards and serve to protect the same.

Flanges or legs are made wider than the base part 2 and present a wide surface for engagement with the Construction boards. `As illustrated, the fianges 3 may be provided with projectons in the form of outwardly projecting loops 5 which may be formed by slitting the fianges and stretching the slitted band outwardly to form loops 5. Loops 5 serveto retain or bond 'the plaster whichmay be placed over 0 the joint, and for this purpose may be forned t from one strip of metal.

3, in the preferred form The loops 5 are but may be of any in any desired number. shown as arcuate in form, suitable shape.

In assembling a wall of composition board, the edges of two adjacent boards A are placed within the channels formed between base l and fianges 3. If the union device is to be used in the erection of composition boards, or the like, on Wood studthe union may be 'Secured to the frame, or stud by driving a wedge or nail of the proper size into the center groove and through the base. This oper` ation serves to spread the two channels slightly and clinches the flanges against the board A. It will be observed that since the walls of the base 1 are held together, there will be a tendency for the nail or wedge to force the flanges 3 outwardly so as to grip the boards A.

If the composition board is to be erected on steel framework, the' union may be readily secured to 'the framework by means of a clip on the back of the union.

The union is preferably rolled or formed Becauseof its shape, it is extremely ri gid and can be made of lightweight material, such as, for example, galvanized sheet metal. In practice, the union may be rolled from a single metal strip and the loops extruded thereon by one' pass' through a machine using a series of rolls and cutters.

' The union permits the assembly' of boards in a modicum of time, furnishes a reenforced and tight joint for the boards, and provides plaster keys for the retainingof plaster about the board joints. The stretched out, arcuate loops also serve to reenforce the plaster 'joint and prevent cracking of the plaster at the joint.

The foregoing .detailed description has been given for clearness of Understanding only, and no unnecessary limitations should be understood therefrom, but the appended claims should be constried as broadly as permissible, in View of the prior art.

I claim:

1. In a self-supporting stud for compo'si tionboards, a metal channel member provided with portions adapted'to embrace adjacent sides' of said composition board, at

' porting the adjoining flanges disposed opposite edges of said boards,

least one of said portions being provided with plaster retaining loops, stretched from the metal.

2. A metal, self-supporting stud for supporting'composition boards, comprising base, said base, said flanges and base affording between them, grooves adapted to support adjacent edges of said boards, and stretched, arcuate loops formed in the metal of said flanges adjacent said base for bonding to the plaster. i

3. A reenforced stud for composition board, comprising a member I-shaped in cross section, having parallel flanges and a base K section being provided with plaster retaining loops stretched from the metal.

4. In a self-supporting metal stud for supedges of composition boards, a base member extending between the and means for embracing the edges of said boards, said embracing means including loops stretched from the metal, said loops serving to bond the plaster to the boards and`prevent crackng of the plaster at the board joints.

In witness Whereof, I have hereunto set my hand this 24th day of April, 1929.

ROBERT M. CHESNEY. 

